Trail Running calendar near Builth Wells 2026-2027

A guided traverse of all 14 Snowdonia peaks over 3000 ft from Pen y Pass, offered as a 20 hour single-day challenge or spread over two days, with guided run and walk options, food stops, and low ratio qualified leaders.

Three coastal ultramarathons on 18 and 19 July 2026 follow Wales Coast Path into Cardiff Bay, offering 100, 50 and 30 mile options across beaches, dunes, cliffs and forest with checkpoint support and GPS tracking.

Experience an off road adventure through the deep mud and water crossings of the Huntley Estate. Participants can choose between various distances and will receive a themed medal upon finishing this muddy trail run.

A 12 hour night trail event at Bridgend Miniature Railway where runners complete as many 10 mile loops as they can across two to three route options, with marked routes, Base Camp support and a 30 runner limit.

A 5k muddy obstacle course at Worcester Racecourse on 18 Jul 2026, open to participants aged 13 and over. Entry includes fundraising support and a finishers medal, with a minimum fundraising target of £50.

Wye Valley Tunnel Run on 19 July 2026 features fun runs plus 10 km, half marathon and marathon routes that use the Wye Valley Greenway and long tunnel. Courses are well marked with feed stations and event medals.

Two trail races in Aymestrey, Herefordshire, both climbing to the Iron Age hillfort at Croft Ambrey. Routes are fully marked with water stations and a separate juniors 2 km race with medals.

A traditional off-road fell race on 19 July 2026 at Selworthy Beacon, about 4 miles with 1000 ft ascent and self-navigation required; entry is £12 for FRA members and £14 for non-members.

A Trail 10k at Llys y Fran Lake with varied terrain, lakeside and woodland sections, chip timing and a finisher's medal. The race is the second event in the 2026 RTT Series and includes marked routes and water stations.

A professionally guided, fully supported three day loop in Northern Snowdonia visiting 47 summits over just over 100 km with about 9,000 m of ascent. Small groups return each day to Capel Curig with a support vehicle and 1:6 guiding ratio.

A short fell race of 5.54 km with 315 m of ascent, run on a partially marked route that requires navigational skill and prior fell-running experience. Entry on the night costs £3 and the event is insured by the WFRA.

A 100 km, 3,178 m ascent ultramarathon on 25 July 2026 following the Beacons Way across the Brecon Beacons. Entry is by application with strict qualifying criteria, mandatory map and compass navigation, six manned checkpoints and compulsory..

A 100 mile self-navigation ultramarathon across the Brecon Beacons on 25 July 2026 with 6143 m ascent, ten checkpoints and live GPS tracking. Entrants must be 20+, have prior 50 mile race experience and competent map and compass skills.

A multi-distance running event along the River Severn on a disused railway between Ironbridge and Bridgnorth, offering distances from 9 miles to 37 miles with regular aid stations and riverside views.

Multi-distance trail running in the Brecon Beacons near Abergavenny on 25 to 26 July 2026, with routes from 12 km to 110 km and UTMB Index race status for key categories.

A Britney themed 7 hour Time Challenge at Dare Valley Country Park offering distances from 3 km up to ultra and 50 km. Aid tables, medals and goody bags are provided, with free parking, toilets and a cafe on site.

A basecamp event at Dunster on 25 July 2026 offering a 50 km loop with about 1600 m of climb plus 25 km and 10 km options, all supported with marquee rest stops, GPS tracking, catering, medical cover and camping.

MacTuffX Birmingham on 25 July 2026 at Edgbaston combines ten functional Xercises with repeated runs in Classic (10x400m) or 2X (10x800m) formats. Solo, doubles and relay entries are available; entrants must be 18 or older.

A 9.3 km fell race near Cwm, Ebbw Vale with 549 m of climb on moorland and a partly waymarked anticlockwise loop. Basic navigation and mountain skills are useful; the event is part of the South Wales Series.

Two trail races across Pen Y Fan on 26 July 2026, offering 5 or 13 mile routes with chip timing, a medal and compulsory safety kit. Registration runs from 27 July 2025 to 20 July 2026.